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Registered
Join Date: Mar 2003
Location: SW Cheese Country
Posts: 13,615
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One of the shows on not long ago showed them quenching in a pretty high salt content brine with a wetting agent of some sort. Don't remember what they were quenching, but it looked similar to color case hardening when they were done.
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Brent
The X15 was the only aircraft I flew where I was glad the engine quit. - Milt Thompson.
"Don't get so caught up in your right to dissent that you forget your obligation to contribute." Mrs. James to her son Chappie.
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